builtin:functions:zmv [ZshWiki]: "o load zmv :
autoload -U zmv
zmv is a module that allow people to do massive rename. The first option to know about zmv is the -n option that will show what will be done without being executed.
to rename a class music files which names are la like this : artist - album - track - title.ogg :
"

The program has identified and displayed the start of activity bouts that exceed a user-defined threshold (here, 5 counts/minute) for a user-defined period (here, 10 minutes). The day, start time, circadian day, circadian start time, number of counts per bout, and bout duration can be exported to a spreadsheet file."